# ***** BEGIN GPL LICENSE BLOCK *****
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software Foundation,
# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
#
# ***** END GPL LICENSE BLOCK *****

if(WIN32)
	set(OPENEXR_CMAKE_CXX_STANDARD_LIBRARIES "kernel32${LIBEXT} user32${LIBEXT} gdi32${LIBEXT} winspool${LIBEXT} shell32${LIBEXT} ole32${LIBEXT} oleaut32${LIBEXT} uuid${LIBEXT} comdlg32${LIBEXT} advapi32${LIBEXT} psapi${LIBEXT}")
	set(OPENEXR_EXTRA_ARGS
		-DCMAKE_CXX_STANDARD_LIBRARIES=${OPENEXR_CMAKE_CXX_STANDARD_LIBRARIES}
		-DZLIB_LIBRARY=${LIBDIR}/zlib/lib/${ZLIB_LIBRARY}
		-DZLIB_INCLUDE_DIR=${LIBDIR}/zlib/include/
		-DILMBASE_PACKAGE_PREFIX=${LIBDIR}/ilmbase
		-DOPENEXR_BUILD_ILMBASE=On
		-DOPENEXR_BUILD_OPENEXR=On
		-DOPENEXR_BUILD_PYTHON_LIBS=Off
		-DOPENEXR_BUILD_STATIC=On
		-DOPENEXR_BUILD_SHARED=Off
		-DOPENEXR_BUILD_TESTS=Off
		-DOPENEXR_BUILD_VIEWERS=Off
		-DOPENEXR_BUILD_UTILS=Off
		-DOPENEXR_NAMESPACE_VERSIONING=Off
	)
	ExternalProject_Add(external_openexr
		URL ${OPENEXR_URI}
		DOWNLOAD_DIR ${DOWNLOAD_DIR}
		URL_HASH MD5=${OPENEXR_HASH}
		PREFIX ${BUILD_DIR}/openexr
		CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/openexr ${DEFAULT_CMAKE_FLAGS} ${OPENEXR_EXTRA_ARGS}
		INSTALL_DIR ${LIBDIR}/openexr
	)

	ExternalProject_Add_Step(external_openexr after_install
		COMMAND	${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/openexr/lib ${HARVEST_TARGET}/openexr/lib
		#libs have moved between versions, just duplicate it for now.
		COMMAND	${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/openexr/lib ${LIBDIR}/ilmbase/lib
		COMMAND	${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/openexr/include ${HARVEST_TARGET}/openexr/include
		DEPENDEES install
	)

else()
	set(OPENEXR_PKG_CONFIG_PATH ${LIBDIR}/zlib/share/pkgconfig)
	set(OPENEXR_EXTRA_ARGS
	  --enable-static
	  --disable-shared
	  --enable-cxxstd=11
	  --with-ilmbase-prefix=${LIBDIR}/ilmbase
	  )

	ExternalProject_Add(external_openexr
		URL ${OPENEXR_URI}
		DOWNLOAD_DIR ${DOWNLOAD_DIR}
		URL_HASH MD5=${OPENEXR_HASH}
		PREFIX ${BUILD_DIR}/openexr
		CONFIGURE_COMMAND ${CONFIGURE_ENV} && export PKG_CONFIG_PATH=${OPENEXR_PKG_CONFIG_PATH} && cd ${BUILD_DIR}/openexr/src/external_openexr/ && ${CONFIGURE_COMMAND} --prefix=${LIBDIR}/openexr ${OPENEXR_EXTRA_ARGS}
		BUILD_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/openexr/src/external_openexr/ && make -j${MAKE_THREADS}
		INSTALL_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/openexr/src/external_openexr/ && make install
		INSTALL_DIR ${LIBDIR}/openexr
	)
endif()

add_dependencies(
	external_openexr
	external_zlib
	external_ilmbase
)
